From: Mauro Carvalho Chehab Date: Tue, 14 Jan 2014 16:49:04 +0000 (-0200) Subject: em28xx-alsa: Fix error patch for init/fini X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=452f236fcf845ba95c2f984f3157493e07383792;p=GitHub%2FLineageOS%2Fandroid_kernel_motorola_exynos9610.git em28xx-alsa: Fix error patch for init/fini If something bad happens during init, we free the card data. However, we still keep it initialized, causing some dependent code to be called at .fini. Fix it. Signed-off-by: Mauro Carvalho Chehab --- diff --git a/drivers/media/usb/em28xx/em28xx-audio.c b/drivers/media/usb/em28xx/em28xx-audio.c index 1563f71a5ea2..45bea1adc11c 100644 --- a/drivers/media/usb/em28xx/em28xx-audio.c +++ b/drivers/media/usb/em28xx/em28xx-audio.c @@ -948,6 +948,7 @@ urb_free: card_free: snd_card_free(card); + adev->sndcard = NULL; return err; } @@ -966,12 +967,12 @@ static int em28xx_audio_fini(struct em28xx *dev) em28xx_info("Closing audio extension"); - snd_card_disconnect(dev->adev.sndcard); - flush_work(&dev->wq_trigger); + if (dev->adev.sndcard) { + snd_card_disconnect(dev->adev.sndcard); + flush_work(&dev->wq_trigger); - em28xx_audio_free_urb(dev); + em28xx_audio_free_urb(dev); - if (dev->adev.sndcard) { snd_card_free(dev->adev.sndcard); dev->adev.sndcard = NULL; }